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S8P4.c
| Question | Answer |
|---|---|
| Cornea | transparent layer of the front of the eye; covers both the iris and the pupil; also helps refract light |
| Pupil | A hole that controls the amount of light that enters the eye by adjusting in size. |
| iris | The part of the eye that adjust the size of the pupil; provides characteristic eye color |
| lens | A transparent object that refracts light waves such that they converge or diverge to create an image |
| convex lens | a lens that is thicker in the middle than at the edges |
| Retina | Structure at the back of the eye upon which the lens forms an image |
| Optic nerve | Eye structure that transmits information about an image formed on the retina to the brain |
| Electromagnetic spectrum | all of the frequencies or wavelengths of electromagnetic radation |
| radio waves | electromagnetic waves that have the longest wavelength, lowest frequency, and least amount of energy |
| MIcrowaves | Light on the electromagnetic spectrum, light with wavelengths that fall between visible light and microwaves. |
| infrared light | light on the electromagnetic spectrum, light with wavelengths that fall between visible light and microwaves |
| visible light | a narrow section of the electromagnetic spectrum that the human eye can detect |
| ultraviolet light | electromagnetic radiation having wavelengths that fall between visible light and x-rays |
| x-rays | electromagnetic waves with short wavelengths, high frequencies and high energy that can travel through soft tissue |
| gamma rays | the shortest electromagnetic waves that have the highest frequencies and highest energy. |